CA1125973A - Methode et appareil de fabrication de membrane perforee - Google Patents

Methode et appareil de fabrication de membrane perforee

Info

Publication number
CA1125973A
CA1125973A CA328,166A CA328166A CA1125973A CA 1125973 A CA1125973 A CA 1125973A CA 328166 A CA328166 A CA 328166A CA 1125973 A CA1125973 A CA 1125973A
Authority
CA
Canada
Prior art keywords
sheet
molding element
length
major axis
minor axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA328,166A
Other languages
English (en)
Inventor
James M. Adams
Garland E. Raley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tredegar Corp
Original Assignee
Ethyl Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ethyl Corp filed Critical Ethyl Corp
Application granted granted Critical
Publication of CA1125973A publication Critical patent/CA1125973A/fr
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15731—Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/18—Thermoforming apparatus
    • B29C51/20—Thermoforming apparatus having movable moulds or mould parts
    • B29C51/22—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis
    • B29C51/225—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis mounted on a vacuum drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Forests & Forestry (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Manufacturing & Machinery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
CA328,166A 1978-05-24 1979-05-23 Methode et appareil de fabrication de membrane perforee Expired CA1125973A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90911278A 1978-05-24 1978-05-24
US909,112 1978-05-24

Publications (1)

Publication Number Publication Date
CA1125973A true CA1125973A (fr) 1982-06-22

Family

ID=25426652

Family Applications (1)

Application Number Title Priority Date Filing Date
CA328,166A Expired CA1125973A (fr) 1978-05-24 1979-05-23 Methode et appareil de fabrication de membrane perforee

Country Status (6)

Country Link
JP (1) JPS5519594A (fr)
BE (1) BE876499A (fr)
CA (1) CA1125973A (fr)
DE (1) DE2921078A1 (fr)
FR (1) FR2426556A1 (fr)
GB (1) GB2021479B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5492705A (en) 1992-04-27 1996-02-20 Dowbrands L.P. Vegetable containing storage bag and method for storing same

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441952A (en) * 1981-02-02 1984-04-10 The Procter & Gamble Company Method and apparatus for uniformly debossing and aperturing a resilient plastic web
US4741877A (en) * 1983-10-17 1988-05-03 The Procter & Gamble Company Uniformly debossing and aperturing a moving plastic web using stationary support member in forming area
ATE39821T1 (de) * 1983-10-17 1989-01-15 Procter & Gamble Verfahren und einrichtung zum gleichmaessigen tiefpraegen und fakultativen perforieren einer sich bewegenden kunststoffbahn.
US4839216A (en) * 1984-02-16 1989-06-13 The Procter & Gamble Company Formed material produced by solid-state formation with a high-pressure liquid stream
SE449298B (sv) * 1984-05-15 1987-04-27 Moelnlycke Ab Absorberande produkt, sasom dambinda, bloja eller sarforband
US4681793A (en) * 1985-05-31 1987-07-21 The Procter & Gamble Company Non-occluding, liquid-impervious, composite backsheet for absorptive devices
US4591523A (en) * 1985-05-31 1986-05-27 The Procter & Gamble Company Apertured macroscopically expanded three-dimensional polymeric web exhibiting breatheability and resistance to fluid transmission
US4778644A (en) * 1987-08-24 1988-10-18 The Procter & Gamble Company Method and apparatus for making substantially fluid-impervious microbubbled polymeric web using high pressure liquid stream
US4846821A (en) * 1987-08-24 1989-07-11 The Procter & Gamble Company Substantially fluid-impervious microbubbled polymeric web exhibiting low levels of noise when subjected to movement
US4772444A (en) * 1987-08-24 1988-09-20 The Procter & Gamble Company Method and apparatus for making microbubbled and/or microapertured polymeric webs using hydraulic pressure
JP2928665B2 (ja) * 1991-08-21 1999-08-03 ユニ・チャーム株式会社 吸収性物品の表面シート、およびその製造方法
TW252915B (fr) * 1991-12-25 1995-08-01 Kao Corp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591921A (en) * 1925-03-25 1926-07-06 St Annes Board Mill Co Ltd Suction cylinder or roll of machines for making paper, paper board, mill board, and the like
NL114076C (fr) * 1954-06-16
US3814101A (en) * 1970-09-17 1974-06-04 Union Carbide Corp Disposable absorbent articles
US3038198A (en) * 1956-01-03 1962-06-12 Kendall & Co Apparatus for perforating thermoplastic sheets
US3929135A (en) * 1974-12-20 1975-12-30 Procter & Gamble Absorptive structure having tapered capillaries
JPS51109068A (ja) * 1975-03-20 1976-09-27 Maruto Kasei Kogyo Kk Kajitsutonoyusoyopatsukuo goseijushishiitoomotsuteseikeisuruhoho

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5492705A (en) 1992-04-27 1996-02-20 Dowbrands L.P. Vegetable containing storage bag and method for storing same

Also Published As

Publication number Publication date
JPS5519594A (en) 1980-02-12
FR2426556B1 (fr) 1984-12-14
FR2426556A1 (fr) 1979-12-21
JPS5736130B2 (fr) 1982-08-02
DE2921078A1 (de) 1979-12-06
GB2021479A (en) 1979-12-05
BE876499A (fr) 1979-11-23
GB2021479B (en) 1982-04-15

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Legal Events

Date Code Title Description
MKEX Expiry